My wrong answers in text. ________ profit-and-loss report is due tomorrow.

Two - Missed these questions on my last exam, looking for help understanding which is correct. My wrong answers in text.

Mr. ________ profit-and-loss report is due tomorrow.

a. Jones' (answered wrong)

b. Jones's

c. Joneses'

d. Jones

When a pronoun receives the action of the verb, use the ________ pronoun.

a. subjective

b. objective

c. reflexive (answered wrong)

d. possessive

We thought it was ________ ________ should go.

a. him/who

b. he/who

c. he/whom

d. him/whom (answered wrong)

Which sentence is preferable?

a. Everyone has a right to his or her opinion.

b. Everyone has a right to an opinion. (answered wrong)

c. Everyone has a right to their opinion.

d. Everyone has a right to his opinion.